Essays about: "Rhopalosiphum padi L."
Found 5 essays containing the words Rhopalosiphum padi L..
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1. Naturliga fiender till havrebladlöss vid en kantzon med varierad vegetation : en fältstudie av naturliga fienders förekomst vid två olika utformningar av vegetation och deras attraktion till metylsalicylat
University essay from SLU/Dept. of EcologyAbstract : Många växtskadegörare finns inom jordbruket som kan orsaka skördeförluster. Dessa kan bland annat bekämpas med kemiska växtskyddsmedel. Pågående utfasning av aktiva substanser kräver dock utveckling av alternativa bekämpningsmetoder. READ MORE
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2. The role of midfield islets in pest control
University essay from Institutionen för naturgeografi och kvartärgeologi (INK)Abstract : During last century rising populations and changed market preferences have led to large structuralchanges in agriculture in the developed world. Most conventional cultivation methods involve theproduction of few monoculture crops within a homogenous landscape, where pesticides and inorganicfertilizers are used to increase yields. READ MORE
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3. Responses of aphids to semiochemicals released from ladybirds
University essay from SLU/Dept. of EcologyAbstract : Predatory ladybirds, as natural enemies of aphids, can influence their prey in various ways, for example by consuming them or making the aphids drop off from their host plants. In this study, I have examined whether aphids can respond to the semiochemicals released from ladybirds. READ MORE
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4. Plant chemical signalling affecting aphid-plant interactions
University essay from SLU/Horticulture (until 121231)Abstract : Aphid-plant interaction are complex processes where much still remains to be explored. This project tested the capacity of aphid-infested barley, Hordeum vulgare (L.), to induce defencelike responses in neighbouring plants via chemical signals, making them less acceptable to the bird cherry-oat aphid Rhopalosiphum padi (L.). READ MORE
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5. Induction of pathogenesis-related genes, PR-17a and N-methyltransferase, in barley infested by the aphid Rhopalosiphum padi
University essay from Institutionen för livsvetenskaperAbstract : Plants produce a large diverse array of organic compounds that may function in protection against pathogens. Diverse antifungal compounds were reported to exist in barley (Hordeum vulgare L.); the indole alkaloid, gramine, and the pathogenesis-related proteins are some of them. READ MORE